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  • Effect of an Experimental Paste with Hydroxyapatite ...

    Two-hundred and forty enamel and 240 dentine specimens were selected by using surface microhardness; half of them were subjected to pre-demineralisation and the other half remained sound. Sound specimens were further exposed to severe cariogenic challenge (20% sucrose in biofilm) in situ, while pre-demineralised specimens were not.

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  • Effects of sounds generated by a dental turbine and a ...

    Effects of sound generated by a dental turbine and a small stream (murmur) and the effects of no sound (null, control) on heart rate, systolic and diastolic blood pressure, and hemodynamic changes (oxygenated, deoxygenated, and total hemoglobin concentrations) in the frontal cortex were measured in 18 young volunteers. Questionnaires completed by the volunteers were also evaluated.

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  • A pilot study of measurement of the frequency of

    Since the development and use of the high-speed dental air turbine some 45 years ago, concern has been expressed in the literature about a possible cause and effect relationship between use of the drill and hearing loss in dentists. The hearing threshold in humans varies with the frequency of sound. …

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  • The addition of nano-sized hydroxyapatite to a sports ...

    Objectives: This study examined the dental erosion and demineralization potential of a sports drink containing nano-sized hydroxyapatite (nano-HA) as an additive. Methods: The experimental solutions were Powerade (PA) alone and PA with 0.05%, 0.10%, and 0.25% nano-HA. The pH, titratable acidity, and calcium and phosphate content of each solution were analysed, and the degree of saturation with ...

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  • Machinability of high-speed enamel cutting with

    2020-3-1 · Because of the low torque of this dental high-speed air-turbine handpiece, it is easy to reduce the bur rotating speed during the cutting process (Westland, 1980). In the enamel-cutting process, the rotating speed of the carbide bur is decreased with the increase in material-removal rate. When the bur rotating speed decreases, the torque also ...

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  • Elastic modulus and stress–strain response of human

    Nano-indentation with a sharp (Berkovich) and two spherical indenters with nominal tip radii of 5 and 20 μm was used to determine the elastic modulus and stress–strain response of human enamel.Indentation tests were made over a wide range of peak loads from 1 to 450 mN in two orthogonal directions, i.e., parallel and perpendicular to enamel prisms.

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  • Evaluating dental zirconia - PubMed

    Contact testing is a powerful tool for elucidating the fracture and deformation modes that control the lifetimes of zirconia dental ceramics. The advocated tests are simple, and provide a sound physical basis for analyzing damage resistance of anatomically-correct crowns and other complex dental pro …

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  • Therapeutic Use of Silver Nanoparticles in the

    2020-8-12 · Dental caries is one of the major diseases of the oral cavity affecting humans worldwide. Different alternatives have been used for its control, but its incidence and prevalence are still high. On the other hand, silver has been used for centuries due to its antimicrobial properties. With advances in nanotechnology, the use and research in nanomaterials has increased, recently, and silver ...

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  • Minimally invasive judgement calls: managing

    2020-10-9 · A recent report from one of the largest dental hospitals in the UK showed that 19.4% of the paediatric patients undergoing GA had extractions of cFPMs. ... strengths when compared to sound enamel ...

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  • Trials Begin For Lozenge That Rebuilds Tooth Enamel |

    2021-6-2 · “Dental fluorosis is a common[2] disorder, characterized by hypomineralization of tooth enamel” “Enamel hypocalcification is a defect of tooth enamel in which normal amounts of enamel are ...

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  • Enamel and dentine remineralization by nano

    2011-6-1 · Dental enamel comprises by 85–90 vol% of a calcium-deficient carbonate hydroxyapatite, whilst dentine contains considerably lower amounts (∼50 vol%). 37 With this in mind, in environments supersaturated with respect to apatites, quantity of dentine remineralization should be higher compared to enamel, 38 and this was corroborated by the ...

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  • Nano-indentation characterisation of natural carious

    The aim of this paper was to characterise the mechanical properties (MPs) and microstructural features of natural enamel white spot lesions (WSLs) using nano-indentation. Five natural WSLs from 4 extracted sound premolar teeth were cross-sectioned.

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  • Statistical Analysis for Subjective and Objective ...

    2016-7-27 · The sound produced by a dental air turbine handpiece (dental drill) can markedly influence the sound environment in a dental clinic. Indeed, many patients report that the sound of a dental drill elicits an unpleasant feeling. Although several manufacturers have attempted to reduce the sound pressure levels produced by dental drills during idling based on ISO 14457, the sound emitted by such ...

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  • Bond strength of composite resin to enamel and dentin ...

    (Clearfil SE Bond, Kuraray Noritake Dental, Osaka, Japan) and a one-step self-etching system (Clearfil Tri-S Bond, Kuraray Noritake Dental) were used as adhesive Bond strength of composite resin to enamel and dentin prepared with Er,Cr:YSGG laser Mayo TAKADA1, Koichi SHINKAI 2, Chikage KATO and Masaya SUZUKI2

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  • Elastic modulus and stress–strain response of human

    Nano-indentation with a sharp (Berkovich) and two spherical indenters with nominal tip radii of 5 and 20 μm was used to determine the elastic modulus and stress–strain response of human enamel.Indentation tests were made over a wide range of peak loads from 1 to 450 mN in two orthogonal directions, i.e., parallel and perpendicular to enamel prisms.

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  • Comparison of Remineralising Potential of Nano Silver ...

    1. Oral Health Prev Dent. 2019;17(5):469-477. doi: 10.3290/j.ohpd.a42739. Comparison of Remineralising Potential of Nano Silver Fluoride, Silver Diamine Fluoride and Sodium Fluoride Varnish on Artificial Caries: An In Vitro Study.

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  • Review scaffold design and stem cells for tooth ...

    2013-2-1 · Using different dental cells, researchers with the aid of tissue engineering technique aim to build up mineralized dentin, enamel, and cementum and ultimately tooth crown with its root. Human tooth incorporates a crown façade for munching, and a root, which affixes to the central alveolar bone within the periodontal ligament.

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  • Performance and Internal Flow of a Dental Air Turbine ...

    An air turbine handpiece is a dental abrasive device that rotates at high speed and uses compressed air as the driving force. It is characterized by its small size, light weight, and painless abrading due to its high-speed rotation, but its torque is small and noise level is high. Thus, to improve the performance of the air turbine handpiece, we conducted a performance test of an actual ...

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  • 10th CONSEURO

    Dear Colleagues, The European Federation for Conservative Dentistry (EFCD) and the Turkish Society of Restorative Dentistry (RDD) have the honor and pride to organize together the most important Conservative Dentistry Congress of Europe, the 10th ConsEuro. This event was to be held in Antalya Turkey between 22nd and 24th of April 2021.

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  • Oral manifestations of vitamin D deficiency in children ...

    2020-4-10 · Vitamin D deficiency can result in chronological hypoplasia enamel defects, which can impact patients' oral health and dental aesthetics. The management of …

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  • [Analysing noise levels in dental environment. Air

    Dental Air Turbine sound depends on the mechanical performance such as rotation and it is impossible to neglect connections of the sound with fluid mechanics and acoustics. Turbine sound must be considered from the standpoint of the sound pressure level and frequency component. In this study, the sound samples was measured and analysed in ...

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  • Oriented and Ordered Biomimetic Remineralization of

    2017-1-12 · Achieving oriented and ordered remineralization on the surface of demineralized dental enamel, thereby restoring the satisfactory mechanical properties approaching those of sound enamel…

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  • A novel self-assembled oligopeptide amphiphile for ...

    2014-4-27 · Researchers are looking for biomimetic mineralization of ena/mel to manage dental erosion. This study evaluated biomimetic mineralization of demineralized enamel induced by a synthetic and self-assembled oligopeptide amphiphile (OPA). The results showed that the OPA self-assembled into nano-fibres in the presence of calcium ions and in neutral acidity.

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  • Turbine (Zahnmedizin) – Wikipedia

    2021-6-16 · Eine Turbine (engl. dental turbine) ist in der Zahnmedizin ein abgewinkeltes Präparationsinstrument, mit dem der Zahnarzt oral arbeitet. Es dient zum Bohren und Schleifen an menschlichen Zähnen und wird mit genormten Anschlüssen an eine Dentaleinheit angeschlossen. Eine Turbine kann zur konservierenden und zur prothetischen Behandlung eingesetzt werden.

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  • COXO MEDICAL INSTRUMENT CO., LTD. - COXO

    COXO is a professional dental products manufacturer in China. News. Dental South China2021 review. During the Dental South China2021 Exhibition, COXO carried out a famous teacher lecture activity, invited three teachers to give lectures, and the scene was very lively!

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  • Ferranti Wong - Institute of Dentistry - Barts and The

    2021-6-24 · Dental Update 31:602-607; Wong FSL, Kolokotsa K (2004) The cost for treating children and adolescents with injuries in permanent incisors at a Dental Hospital in United Kingdom. Dental Traumatology 20:327-333; Wong FSL, Anderson P, Fan H, Davis GR (2004) X-Ray Microtomographic Study Of Mineral Concentration Distribution In Deciduous Enamel. Oral.

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  • Repair of tooth enamel by a biomimetic mineralization ...

    2011-5-26 · Simulation of tooth preparation using rotary cutting instruments is viewed as beneficial and essential in dental training. Various types of materials have been used for simulation systems in dental preclinical training. However, the phantom tooth materials used for simulation have not changed significantly for decades and they are acknowledged to be different from natural teeth.

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  • A novel polymer infiltrated ceramic for dental

    As well as from online technical support, return and replacement. And whether cheap dental teeth is gb/t18830-2009, en 149 -2001+a1-2009, or gb15979-2002. There are 2,011 cheap dental teeth suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of cheap dental teeth respectively.

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  • China Cheap Dental Teeth, China Cheap Dental Teeth ...

    2009-2-28 · Dental Treatment of White Spots and a Description of the Technique and Digital Quantification of the Loss of Enamel Volume Ana Roig-Vanaclocha , María Fernanda Solá-Ruiz

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  • Is Tooth Drilling Necessary In Dental Treatment?

    A dental drill is a mechanical tool that dental professionals use to clean decayed enamel and dentine. Tooth decay or cavities occur when the bacteria in the mouth combine with sugar, which produces acids that breakdown tooth enamel. If you are scheduled for a cavity filling, your dental professional will need to remove the tooth's damaged area ...

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  • A practice manager’s guide to dental handpieces ...

    2018-8-22 · Dental handpiece types – air turbine versus electrical. There are two systems for powering handpieces: air turbine and electrical. Air driven handpieces contain an air-driven spinning turbine to generate rotation, and are powered by compressed air. They can reach speeds of up to 400,000 rpm with a variable torque.

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  • Applications of polyetheretherketone (PEEK) in oral ...

    2016-1-1 · Polyetheretherketone (PEEK) is a synthetic, tooth colored polymeric material that has been used as a biomaterial in orthopedics for many years , , .The monomer unit of etheretherketone monomer polymerizes via step-growth dialkylation reaction of bis-phenolates to form polyetheretherketone.A common synthesis route for PEEK is the reaction between 4,4′-difluorobenzophenone and the …

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  • Difference in physiological responses to sound

    2008-7-27 · The effects of sound generated by an ultrasonic dental scaler and a dental turbine on heart rate, systolic and diastolic blood pressure, and hemodynamic changes in the frontal cortex were measured and compared with those of pure tone stimulation in 17 young volunteers. Near-infrared spectroscopy and the Finapres technique were used to measure hemodynamic and cardiovascular …

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  • Ferranti Wong - Institute of Dentistry - Barts and The

    2021-6-24 · Dental Update 31:602-607; Wong FSL, Kolokotsa K (2004) The cost for treating children and adolescents with injuries in permanent incisors at a Dental Hospital in United Kingdom. Dental Traumatology 20:327-333; Wong FSL, Anderson P, Fan H, Davis GR (2004) X-Ray Microtomographic Study Of Mineral Concentration Distribution In Deciduous Enamel. Oral.

    Get Price
  • Air Driven vs. Electrical Handpieces - KaVo Dental Blog

    2021-7-4 · Prestige Dental Products providing low price, top-quality dental supplies, dental equipment, dental orthodontic supply, Shop the best branded of dental materials Prestige Dental …

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  • Abdulrahman BALHADDAD | BDS, MSD, PhD (c) |

    enamel. 1. a coloured glassy substance, translucent or opaque, fused to the surface of articles made of metal, glass, etc., for ornament or protection. 2. an article or articles ornamented with enamel. 3. an enamel-like paint or varnish.

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  • Dental Supplies, Dental Materials, Dental Supply and

    2021-6-4 · 20th century. The century is one of great advances in dental technology. In the 1950s, the first fluoride toothpastes are marketed. In the 1960s, lasers are developed. In the 1990s, new advances in esthetic dentistry emerge, including tooth-colored restorative materials, bleaching materials, veeners and …

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  • Effect of Phosphoric Acid Etching of Enamel Margins

    2009-9-1 · The SBMP system (Group 5) showed the best results on enamel, because of its good bonding efficacy,23,29–30 sufficient enamel etching ability of 35% phosphoric acid and the presence of polyalkenoic acid copolymers in SBMP-primer that lead to bonding durability in a wet environment.30–31 Moreover, repeated formation of the calcium ...

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  • 3M Science. Applied to Life. | 3M Hong Kong

    With almost 100 years of automotive industry experience, we know the nooks and crannies of auto design, manufacture and repair—from helping OEMs improve fuel economy with lightweighting solutions, to helping auto body specialists revolutionize the painting process. Body in White. Chassis and Wheels.

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  • In-Office Air Quality Contamination: What You Don't

    Tooth decay is damage to a tooth caused by dental plaque turning sugars into acid. If plaque is allowed to build up, it can lead to problems, such as holes in the teeth (dental caries) and gum disease. Dental abscesses, which are collections of pus at the end of the teeth or in the gums, may develop.

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  • Tooth decay - NHS

    2012-5-28 · Dental plaque biofilm is a diverse collection of micro-organisms in the oral cavity, containing many species of bacteria such as S. mutans. Plaque grows on teeth, gums, the tongue and cheeks, leading to dental decay and periodontal disease. The micro-organisms living in saliva colonize tooth enamel, dental implants and cementum.

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  • Biofouling: lessons from nature | Philosophical ...

    Visit TryA-dec.com for details. 2009 W&H introduces LED light from non-lighted 4-hole tubing with a unique self-generating turbine. These Alegra handpieces connect seamlessly to nonlighted 4-hole tubing. 2014 W&H develops the smallest electric motor available, the EA-53, which seamlessly integrates into A-dec delivery systems with controls ...

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  • HANDPIECE COLLECTION - A-dec - PDF Catalogs |

    2020-12-29 · Ultrasonic toothbrushes, unlike sonic ones, do not rely on a physical motion to clean the teeth. An ultrasonic toothbrush is one that uses a very high frequency of vibration referred to as ultrasound to remove plaque and bacteria from the teeth. To be classified as such, the brush has to emit a wave of at least 20,000Hz or 2,400,000 movements ...

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  • Sonic vs Ultrasonic Toothbrush: Comparison &

    Looking for MSDS information regarding the chemicals in a commercial product or a material safety data sheet (MSDS)? Here is THE most complete MSDS list on the Internet, and it's free! By federal law, manufacturers must supply this info in an MSDS which we provide here, FREE!

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